The ACR122U is a PC-linked contactless smart card reader&sol;writer developed on the 13&period;56 MHz contactless technology&period; It is the world's first CCID-compliant contactless card reader&sol;writer that follows both ISO 14443 and ISO 18092&period; This device is designed to support not only Mifare and ISO 14443 Type A and B cards&comma; but also FeliCa and NFC tags&period; By making use of up to 424 kbps for NFC tag access and full USB speed of up to 12 Mbps&comma; ACR122U can read and write faster&comma; and more efficiently&period; Furthermore&comma; ACR122U is also PC&sol;SC-compliant which allows inter-operability across different applications and platforms&period; You can experience the convenience in using ACR122U&comma; with its compact size and the various features it offers&comma; for applications such as payment&comma; access control&comma; time and attendance&comma; and mass transit&period;